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Politeknik Maritim Negeri Indonesia
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Pengaruh Quenching Terhadap Sifat Mekanik dan Struktur Mikro Baut Connecting Rod Bekas Untuk Alat Gesek FSW Ari Putranto, Wahyu; Khaeroman; Susanto; Herdawan, Deri; Noviarianto
Infotekmesin Vol 16 No 1 (2025): Infotekmesin: Januari 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i1.2531

Abstract

One method of joining soft metals such as aluminum that is widely used is Friction Stir Welding (FSW). The friction tool is a very important part of FSW. Friction tools are usually made from hardened H13 steel. This research aims to make a friction tool from steel connecting rod bolts used in marine diesel engines. The experimental methods used include FSW tool design, heat treatment of the material at a temperature of 900oC followed by a quenching process with water and salt water cooling media, then continued with material testing (chemical composition test, hardness test, and micrographic test). The test results obtained from the chemical composition test show that the connecting rod bolts include AISI 4145 steel material. The highest hardness value obtained from the connecting rod steel in the saltwater quenching process was 52.67 HRC with a martensite phase, as seen from the micrographic test. Used steel connecting rod bolts from marine diesel engines can be used as FSW friction tool material.
Supporting Extensive Reading with ChatGPT: A Qualitative Study of Student Experiences in an EFL Context Herdawan, Deri; Sari, Dhesi Wulan; Setyoningrum, Ari Ani Dyah
J-SHMIC : Journal of English for Academic Vol. 13 No. 1 (2026): J-SHMIC: Journal of English for Academic
Publisher : UIR Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jshmic.2026.vol13(1).27167

Abstract

This qualitative study explores the integration of ChatGPT in enhancing the success of Extensive Reading program within the context of English as a Foreign Language. A group of students (n=38) participated in the study and three books of fantasy genre were provided as reading materials. ChatGPT was introduced to assist the participants in their reading comprehension. Data were collected through semi-structured interviewed and analysed thematically. The findings revealed that initial reading interest remains a key factor in deciding ER success. However, integration of ChatGPT provided supports in reducing linguistic and interaction barriers. As a cognitive support, it helps the participants accessing reading materials aligned with their interest and reading level. As an affective support, it facilitates discussion when human interaction is limited or inducing anxiety. This study discusses the potential of implementing ChatGPT in Extensive Reading to complement teacher’s roles without diminishing them, especially in English as a Foreign Language context.
Smart Mom Project: Meningkatkan Peran Ibu dalam Pendidikan Anak melalui Literasi Digital: Smart Mom Project: Enhancing Mothers’ Role in Children’s Education through Digital Literacy Aufi, Ahmad Umam; Sari, Dhesi Wulan; Ariyani, Helena Devi; Herdawan, Deri; Nafillah, Khoirotun; Nindita, Kirtyana
DARMADIKSANI Vol 6 No 1 (2026): Edisi Maret
Publisher : Jurusan Pendidikan Bahasa dan Seni, FKIP, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/darmadiksani.v6i1.9401

Abstract

Kegiatan Pengabdian kepada Masyarakat bertajuk “Smart Mom Project: Meningkatkan Peran Ibu dalam Pendidikan Anak melalui Literasi Digital” dilaksanakan di RT 9 RW 1 Krajan, desa Wringinputih, kecamatan Bergas, kabupaten Semarang. Kegiatan ini dilatarbelakangi oleh rendahnya literasi digital ibu rumah tangga yang berdampak pada kurang optimalnya pendampingan belajar anak serta pengelolaan penggunaan gawai (gawai) di lingkungan keluarga. Hasil observasi awal menunjukkan keterbatasan kemampuan ibu dalam mengoperasikan smartphone, memahami platform pembelajaran daring, serta rendahnya pemahaman terkait keamanan digital dan pengelolaan waktu layar anak. Tujuan kegiatan ini adalah meningkatkan kemampuan literasi digital ibu rumah tangga agar mampu mendampingi pendidikan anak secara lebih aktif, bijak, dan terarah di era digital. Metode pelaksanaan meliputi pelatihan klasikal, demonstrasi langsung, praktik mandiri, diskusi kelompok, serta pendampingan melalui kunjungan rumah dan komunikasi daring. Materi yang diberikan mencakup literasi digital dasar, pemanfaatan gawaigawai untuk pembelajaran, pengaturan parental control, pemilihan konten edukatif, serta pengelolaan screen time anak. Hasil kegiatan menunjukkan peningkatan signifikan pada pengetahuan dan keterampilan digital peserta. Secara kuantitatif, 85% peserta mampu mengatur fitur keamanan digital, 90% mampu membedakan konten edukatif dan non-edukatif, serta 80% berhasil menerapkan pengelolaan screen time anak secara lebih terstruktur. Secara kualitatif, peserta menunjukkan peningkatan kepercayaan diri dalam mendampingi anak belajar, interaksi keluarga yang lebih positif, serta penurunan konflik terkait penggunaan gawaigawai. Kegiatan ini berhasil memperkuat peran ibu dalam pendampingan pendidikan anak berbasis literasi digital dan berkontribusi pada terciptanya lingkungan belajar keluarga yang lebih sehat.
Co-Authors Ahmad Umam Aufi Akhmad Nuriyanis Alimatussa’diyah, Alimatussa’diyah Arif Rakhman Suharso Ario Hendartono Ariyani, Helena Devi Candra O. Putri Dhesi Wulan Sari Evi Sirait Herdiansyah, Ganda Istiqomah Nur Rahmawati Istiqomah Nur Rahmawati Khaeroman Khaeroman, Khaeroman Khoirotun Nafillah Kirtyana Nindita Kiswanto, Heri Kiswanto Kurniawan, Fajar Sari Mahsunah E. Rahayuningsih Marselia Marselia Marselia, Marselia Mar’atus Sholikah Noviarianto, Noviarianto Nur Kholis Purwanto Purwanto Rahayuningsih, Mahsunah Etik Setyoningrum, Ari Ani Dyah Sirait, Evi Sri Tutie Rahayu SUSANTO Susanto Susanto Susanto Susanto Suyono Suyono Suyono Suyono Wahyu Ari Putranto Widar Bayu Wantoro Yulius Oscar Zaghlul Nafis, Ragil